The crust goes first of course and the sauce goes on top. The measurements for the ingredients are just really suggestions. Put on as much or as little as you want on this. The important part is that it only takes about 10 minutes in the oven and that's just to crisp everything up and melt your cheese. You can even do this on the grill if you want. I drizzle with the olive oil right before putting it into the oven, then add a little more right before serving it.